/* ===== RESET & BASE ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #0a0a0a;
  color: #d4d4d4;
  line-height: 1.7;
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

/* ===== NAVIGATION ===== */
nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: rgba(10, 10, 10, 0.95);
  border-bottom: 1px solid #1a1a1a;
  z-index: 100;
  padding: 16px 0;
}

.nav-container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 22px;
  font-weight: 700;
  color: #60a5fa;
  letter-spacing: 2px;
}

.nav-links {
  display: flex;
  gap: 28px;
}

.nav-links a {
  color: #999;
  font-size: 14px;
  letter-spacing: 0.5px;
  transition: color 0.3s;
}

.nav-links a:hover {
  color: #60a5fa;
}

/* ===== HERO SECTION ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 24px 80px;
}

.hero-content {
  max-width: 1000px;
  margin: 0 auto;
  width: 100%;
}

.greeting {
  color: #60a5fa;
  font-size: 16px;
  margin-bottom: 12px;
  letter-spacing: 1px;
}

.hero h1 {
  font-size: 52px;
  color: #ffffff;
  font-weight: 700;
  margin-bottom: 8px;
}

.hero h2 {
  font-size: 24px;
  color: #666;
  font-weight: 400;
  margin-bottom: 24px;
}

.bio {
  max-width: 560px;
  font-size: 16px;
  color: #999;
  margin-bottom: 32px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.5px;
  transition: all 0.3s;
}

.btn-primary {
  background-color: #60a5fa;
  color: #0a0a0a;
}

.btn-primary:hover {
  background-color: #3b82f6;
}

.btn-secondary {
  border: 1px solid #333;
  color: #d4d4d4;
}

.btn-secondary:hover {
  border-color: #60a5fa;
  color: #60a5fa;
}

/* ===== SECTIONS ===== */
.section {
  padding: 80px 24px;
}

.section-alt {
  background-color: #0f0f0f;
}

.container {
  max-width: 1000px;
  margin: 0 auto;
}

.section-title {
  font-size: 28px;
  color: #ffffff;
  margin-bottom: 40px;
  padding-bottom: 12px;
  border-bottom: 2px solid #60a5fa;
  display: inline-block;
}

/* ===== SKILLS ===== */
.skills-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.skill-card {
  background-color: #141414;
  border: 1px solid #1e1e1e;
  border-radius: 8px;
  padding: 24px;
}

.skill-card h3 {
  color: #60a5fa;
  font-size: 16px;
  margin-bottom: 14px;
  font-weight: 600;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  background-color: #1a1a2e;
  color: #a0a0a0;
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 13px;
  border: 1px solid #252540;
}

/* ===== PROJECTS ===== */
.projects-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.project-card {
  background-color: #141414;
  border: 1px solid #1e1e1e;
  border-radius: 8px;
  padding: 28px;
  transition: border-color 0.3s;
}

.project-card:hover {
  border-color: #60a5fa;
}

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.project-header h3 {
  color: #ffffff;
  font-size: 20px;
}

.project-year {
  color: #60a5fa;
  font-size: 14px;
  font-weight: 600;
}

.project-card p {
  color: #999;
  font-size: 15px;
  margin-bottom: 16px;
}

.project-tech {
  margin-bottom: 12px;
}

.project-links a {
  color: #60a5fa;
  font-size: 14px;
  font-weight: 600;
  transition: color 0.3s;
}

.project-links a:hover {
  color: #93c5fd;
}

/* ===== EDUCATION ===== */
.education-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-bottom: 40px;
}

.edu-card {
  background-color: #141414;
  border: 1px solid #1e1e1e;
  border-left: 3px solid #60a5fa;
  border-radius: 8px;
  padding: 24px;
}

.edu-date {
  color: #60a5fa;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 6px;
  letter-spacing: 0.5px;
}

.edu-card h3 {
  color: #ffffff;
  font-size: 18px;
  margin-bottom: 4px;
}

.edu-degree {
  color: #b0b0b0;
  font-size: 15px;
  margin-bottom: 8px;
}

.edu-detail {
  color: #777;
  font-size: 14px;
}

.certs {
  background-color: #141414;
  border: 1px solid #1e1e1e;
  border-radius: 8px;
  padding: 24px;
}

.certs h3 {
  color: #ffffff;
  font-size: 18px;
  margin-bottom: 14px;
}

.certs ul {
  list-style: disc;
  padding-left: 20px;
}

.certs li {
  color: #999;
  font-size: 14px;
  margin-bottom: 8px;
}

/* ===== CONTACT ===== */
.contact-section {
  text-align: center;
}

.contact-text {
  color: #999;
  font-size: 16px;
  max-width: 480px;
  margin: 0 auto 28px;
}

.contact-links {
  display: flex;
  justify-content: center;
  gap: 16px;
}

/* ===== FOOTER ===== */
footer {
  text-align: center;
  padding: 24px;
  border-top: 1px solid #1a1a1a;
  color: #555;
  font-size: 13px;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 32px;
  }

  .hero h2 {
    font-size: 18px;
  }

  .skills-grid {
    grid-template-columns: 1fr;
  }

  .nav-links {
    gap: 16px;
  }

  .nav-links a {
    font-size: 12px;
  }

  .hero-buttons,
  .contact-links {
    flex-direction: column;
    align-items: flex-start;
  }

  .contact-links {
    align-items: center;
  }
}